Warren, the fellow I have in mind is Chris venHaus. His website is:
http://www.venhaus1.com/diymains.html
He also makes cords to order quite reasonably if you're not into DIY. My point about "that short" is that you're really asking for a plug "pigtail", not a power cord. And that's fine. Something "that short" isn't really going to need or benefit from shielding, vibration resistance, fancy alloy or silver conductors, etc. All it requires is big enough conductors to transfer the power required by the amp, and decent plugs for a good connection. If you write Chris and expain what you want to do, I'm sure he could create something appropriate for very little money.
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